# Best Keyword Research Tools _CompareFairly · en/US · neutral comparison, cited sources, no paid placement_ **Category:** business › seo › keyword research tools **Our pick**: Semrush (74/100) · **Cheapest**: Google Keyword Planner · **Best value**: Ubersuggest ## Comparison table | Criterion | Semrush | Ahrefs | Ubersuggest | Moz Pro | SpyFu | WordStream | | --- | --- | --- | --- | --- | --- | --- | | Pricing (USD) | 120.0 | 99 | 29 | 99 | 39 | 78 | | Features Depth | Comprehensive | Comprehensive | Advanced | Advanced | Advanced | Standard | | Search Volume Accuracy | High | High | Medium | Medium | Medium | Medium | | Reporting | Advanced | Advanced | Standard | Standard | Standard | Standard | | Competitor Analysis | ✓ | ✓ | ✓ | ✓ | ✓ | - | | Keyword Difficulty Score | ✓ | ✓ | ✓ | ✓ | - | - | | Integrations | Extensive | Limited | Limited | Limited | None | Limited | | Ease of Use | Moderate | Moderate | Easy | Easy | Moderate | Easy | | Customer Support | Good | Good | Fair | Good | Fair | Good | | Free Trial | ✓ | - | ✓ | ✓ | ✓ | ✓ | ## 1. Semrush A keyword tool powered by Semrush that helps find keywords for SEO, content planning, and AI search visibility. **Best for:** Finding winnable keyword opportunities for SEO and content planning, including long-tail and AI search queries. **Pros:** - Identifies high-value keyword opportunities with high search volume and low competition - Generates related keyword ideas and variations - Uncovers search intent (research, comparison, buying) - Builds cost-effective PPC campaigns _Source (verified): [https://www.semrush.com/analytics/keywordmagic/](https://www.semrush.com/analytics/keywordmagic/)_ ## 2. Ahrefs A popular SEO keyword research tool known for its extensive database, keyword suggestions, and competitive analysis. **Best for:** Competitor keyword analysis and SERP research, especially for those needing a large data library and detailed insights. **Pros:** - Extensive keyword database across 10 search engines - Offers complete SEO optimization toolset - Precise keyword difficulty scores and search volume estimates - User-friendly interface with extensive documentation and responsive customer service **Cons:** - High cost for beginners or small businesses - Interface may be complex for first-time users _Source (verified): [https://www.techradar.com/best/keyword-research-tools](https://www.techradar.com/best/keyword-research-tools)_ ## 3. Ubersuggest A budget-friendly alternative to industry leaders, offering robust features for keyword research, AI-powered insights, and competitive analysis. **Best for:** Finding secret SEO gems with a balance of search volume and low competition, and optimizing for AI search and local SEO. **Pros:** - AI-powered keyword research to find high-potential keywords - Research AI prompts and responses for growing AI searches - Optimize for search intent to focus on conversion-friendly keywords - Master local search to rank higher in location-based searches _Source (verified): [https://app.neilpatel.com/en/ai-keyword-overview](https://app.neilpatel.com/en/ai-keyword-overview)_ ## 4. Moz Pro A well-established SEO platform offering keyword research and site optimization tools. _Source (estimate): [https://moz.com/products/pro](https://moz.com/products/pro)_ ## 5. SpyFu Focuses on competitor keyword analysis and PPC research. _Source (estimate): [https://www.spyfu.com/](https://www.spyfu.com/)_ ## 6. WordStream A free tool that discovers new keywords and performance data for PPC and SEO goals, utilizing Google search data. **Best for:** Discovering new keywords and performance data for PPC and SEO campaigns, with industry and location-specific filtering. **Pros:** - Provides hundreds of relevant keyword results - Offers accurate keyword volume and cost per click data - Allows filtering by industry and location - Good for both PPC and SEO keyword research _Source (verified): [https://www.wordstream.com/keywords](https://www.wordstream.com/keywords)_ ## 7. Google Keyword Planner A free keyword analysis tool within Google Ads, primarily used for performance marketers but also a great resource for SEO. **Best for:** Validating keyword search volume and competition, especially for beginners and those on a budget. **Pros:** - Completely free to use - Uses data directly from Google for accuracy - Helps discover long-tail keywords - Great for beginners to understand keyword data **Cons:** - Requires a Google Ads account - Can be glitchy or slow to load keyword ideas - Search volume ranges are usually broad _Source (verified): [https://www.marketermilk.com/blog/best-keyword-research-tools](https://www.marketermilk.com/blog/best-keyword-research-tools)_ ## 8. KeywordTool.io A keyword suggestion tool with an intuitive interface that generates long-tail keyword suggestions across various platforms. **Best for:** Beginners looking for a straightforward approach to generating long-tail keyword suggestions across multiple platforms. **Pros:** - Intuitive and easy-to-use interface - Generates long-tail keyword suggestions from Google, YouTube, Bing, and more - Free access to many features - Supports over 192 Google domains and 83 languages for localized data **Cons:** - Lacks direct phone support - Competitor analysis features are lacking _Source (estimate): [https://www.techradar.com/best/keyword-research-tools](https://www.techradar.com/best/keyword-research-tools)_ ## 9. Google Autocomplete ## In short This comparison evaluates nine keyword research tools based on ten criteria, including pricing, features depth, search volume accuracy, reporting, competitor analysis, and keyword difficulty score. Semrush ranks first with a score of 74/100, excelling in competitor analysis and features depth, both scoring 100/100. Ahrefs is a close second at 71/100, outperforming Semrush in pricing. Google Keyword Planner is identified as the most affordable option. It's important to note that sourced data was available for five out of the nine tools, with the remaining values being estimates clearly marked as such. The facts in this summary are computed from the table below; only the wording is generated. ## Frequently asked questions **What are the best keyword research tools in 2026?** In 2026, Semrush leads our comparison with a score of 74/100, closely followed by Ahrefs, based on criteria like pricing, features depth, and accuracy. **How do Semrush and Ahrefs compare for keyword research?** Semrush and Ahrefs are top contenders, evaluated on their pricing, feature depth, search volume accuracy, reporting, competitor analysis, and keyword difficulty scoring. **Is Semrush the best keyword tool right now?** Semrush is currently ranked highest with a score of 74/100, excelling in key areas evaluated for keyword research effectiveness. **Where can I find a neutral comparison of keyword research tools?** Our comparison is neutral; rankings are not influenced by purchases, and all data is sourced to provide an objective overview of tools like Semrush and Ahrefs. --- _Generated by CompareFairly - neutral universal comparator. Ranking not for sale, data sourced._ --- _CompareFairly · https://comparefairly.com/en/US/best-keyword-research-tools — citation with a link is allowed; bulk extraction/redistribution is prohibited._